LU-VE ALFA ptigo PF27MC User manual

ORIGINAL INSTRUCTIONS
31573808EN-02
Optigo PF27MC
Instruction manual
• Product description
• Product labels
• Unpacking & lifting
• Installation
• Maintenance
• Spare parts

31573808EN-02
2
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
Index
1. Important information ............................................................................................................ 3
1.1 Disclaimer ................................................................................................................................. 3
1.2 Intended use ............................................................................................................................. 3
1.3 Where to nd product information ............................................................................................ 3
1.4 Warning symbols ...................................................................................................................... 3
1.5 Health, safety and hygiene ....................................................................................................... 4
1.6 Use of ammable gas ............................................................................................................... 4
1.7 Checks at delivery .................................................................................................................... 5
1.8 Return of unused heat exchangers .......................................................................................... 5
1.9 Guarantee ................................................................................................................................ 5
1.10 Disposal .................................................................................................................................... 5
2. Product description ............................................................................................................... 6
2.1 General information and application ......................................................................................... 6
2.2 Standard conguration ............................................................................................................. 6
2.3 Options ..................................................................................................................................... 6
2.4 Code description ...................................................................................................................... 6
3. Product labels ......................................................................................................................... 7
4. Transport and storage ........................................................................................................... 8
5. Unpacking and lifting ............................................................................................................. 9
6. Installation ............................................................................................................................ 11
6.1 Mounting dimensions ............................................................................................................. 11
6.2 Mounting bracket .................................................................................................................... 12
6.3 Technical spaces .................................................................................................................... 12
6.4 Refrigerant connections ......................................................................................................... 13
6.5 Cooler capacity check ............................................................................................................ 14
6.6 Drain line ................................................................................................................................ 14
6.7 Electrical connections ............................................................................................................. 15
6.8 Power failure .......................................................................................................................... 15
6.9 Fan motors connections ......................................................................................................... 16
6.10 Defrost .................................................................................................................................... 16
7. Maintenance .......................................................................................................................... 18
7.1 Shut down periods .................................................................................................................. 18
7.2 Moisture in the refrigeration system ....................................................................................... 18
7.3 Cleaning and disinfecting ....................................................................................................... 18
7.4 Casing .................................................................................................................................... 18
7.5 Coil and drip tray .................................................................................................................... 18
7.6 Electric defrost elements replacement ................................................................................... 19
7.7 Driptray heater elements replacement ................................................................................... 20
7.8 Fans replacement ................................................................................................................... 21
8. Residual risks ....................................................................................................................... 22
9. Troubleshooting ................................................................................................................... 22
10. Spare parts ............................................................................................................................ 23

31573808EN-02
3
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
1 Important information
1.1 Disclaimer
This Instruction Manual applies to all Optigo PF27MC air cooler products. Manual must be carefully
examined and instructions should be followed up at all times.
Alfa LU-VE does not accept liability for any damage resulting from non-compliance to the
instructions as given in the manuals and order-related documents.
1.2 Intended use
Air coolers are partly completed machinery according to Machine Directive 2006/42/EC and are
intended for incorporation in cooling systems. Declarations of Incorporation are available on
alfa.luvegroup.com. The product is built according to the following standards:
• PED 2014/68/EU
• Safety of Machinery EN 60204-1
• Directive 2014/30/EC and subsequent modifications. Electromagnetic compatibility.
• Low Voltage - Reference Directive 2014/35/EC
However it is forbidden to operate our equipment before the machine incorporating the products or
making part thereof has been declared to be in conformity with the EC Machine Directive.
1.3 Where to find product information
Detailed technical data for individual product models are available in order related documents,
on the product label and in product data sheets. Comprehensive technical information for all
Alfa LU-VE air heat exchanger products is available on-line on alfa.luvegroup.com. This includes:
• Product manuals
• Instruction manuals
• Product leaflets & brochures
• Product data sheets (selection software)
• Dimensional drawings
• Certificates
Alfa LU-VE offers world-wide service and support. In case of any questions
or uncertainty please contact your local Alfa LU-VE representative.
Contact addresses are available at alfa.luvegroup.com.
1.4 Warning symbols
The following warning symbols are used in Alfa LU-VE instruction manuals.
General warning.
Risk of malfunctioning and/or
damage.
Hot surfaces. Danger of burns.
Wear adequate protection.
Moving parts. Danger of injuries.
Do not operate without protection guard mounted.
Sharp surface. Danger of cutting injuries. Wear
adequate protection.
Overhead load.
Never stand or walk below the load.
Mandatory prescription.
Follow instructions as provided.
Forklift trucks or other logistic vehicles.
Stay clear of working space.
Risk of injuries.
Wear head protection.
Electrically powered component. Switch off power
supply before any maintenance or installation
activity.
Risk of injuries.
Wear safety footwear.
alfa.luvegroup.com/pfmc

31573808EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
Cold parts. Danger of frostbite injuries.
Wear adequate protection.
Risk of injuries.
Wear protective gloves.
A3 flammable gas.
1.5 Health, safety and hygiene
Ensure that the following guidelines are observed:
• All work on the equipment must be carried out by trained personnel.
• The electrical supply is suitable for the equipment supplied.
• Refrigerant, temperature and pressure must agree with the data on the product label of the
relevant heat exchanger.
• As the heat exchanger is supplied indirectly, the producer is not acquainted with its actual
application.
• The heat exchanger should be installed in conformance with the recognized national standards
of electrical and refrigeration installation practice.
• The supplied heat exchanger is optimized for the refrigerants as stated in the data sheet or
order documents. The allowed maximum pressure is noted on the type plate. During production
the heat exchanger was subjected to a strength test exceeding the design pressure. However,
during normal use the design pressure may not be exceeded.
• Heat exchangers supplied by Alfa LU-VE are normally not equipped with a high-pressure cut
out. The installer is responsible for fitting a high-pressure cut out on the system in which the
heat exchanger is used.
• The heat exchanger shall not be blocked in. If the ambient temperature rises, the pressure could
rise and exceed the design pressure.
• It is not permitted to use the heat exchanger for any purpose other than the one it was designed
for by Alfa LU-VE.
• If the equipment is used in the food industry, responsibility with regard to hygienic conditions lies
with the end user.
1.6 Use of flammable gas
• The product must be stored and installed in rooms where the use of open flames or other
ignition sources is forbidden
• During transport, handling, installation, the product and, in particular, the pipes must be
protected to avoid physical damage which may cause it breakage.
• In the event of suspicious damages or doubts about the correct handling (eg. damaged
packaging) do not install the product before carrying out a thorough integrity check.
• Install the product only and exclusively in places that comply with the minimum size and/or air
exchange requirements established by the applicable standards, in relation to the total charge of
flammable fluid provided for in the installation in which it is incorporated.
• All ordinary and extraordinary maintenance operations must be performed only by qualified
personnel in the use of equipment with flammable fluid. special attention to operations that
require interventions on the pipes.
• The use of refrigerants different than those indicated in the data plate or in this manual is
forbidden.
In general, the use of refrigerants that are not included in the list of the IEC 60335-2-40 Annex b
standard is forbidden.
• Before performing any maintenance operation, exclusively by qualified staff, perform a check for
the absence of gas in the room and around the product through an appropriate detector.
• Before performing any operation for opening the pipes of the refrigerant circuit, by means of
mechanical operations or with open flames, make sure that the circuit does not have any
quantity, even minimal, of inflammable gas and that it has been washed internally with inert
gas (ex. nitrogen). all operations must be performed by personnel qualified in the use of
flammable gases.
• The product shall not be modified in any part of it, by removing or adding component.s

31573808EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
• The product is not an Atex product. The connection of any system component that is not already
assembled in the factory, must take place outside the product, at an appropriate distance and
check that its installation complies with all the regulatory requirements applicable to flammable
gas systems.
• The product is not an Atex product. It is the responsibility of the installer to verify the compliance
of the product and its incorporation in the system to european and national standards.
• In the case of components that must necessarily be installed inside the product, the compliance
of the final assembly is the responsibility of the installer. in particular:
- the use of any component, electrical or mechanical, which may be the origin of sparks or
flames, is forbidden. Only the exclusive use of components suitable for use in explosive
atmosphere (Atex) is allowed.
- the use of components that may be cause of flammable gas leaks is forbidden.
The installation of components of the refrigerant circuit is allowed only with permanent brazed
connection.
1.7 Checks at delivery
At the moment of delivery, carefully check the units.
All finned coils are pressure tested with dry air, sealed and supplied with a slight overpressure. Prior
to installation, the leak resistance must be checked with the Schrader valve.
Any present damage must be reported on the delivery note with a description of the damage.
Damaged heat exchangers, including when the damage is not externally visible, are to be reported
to the shipping agent and Alfa LU-VE within 24 hours.
1.8 Return of unused heat exchangers
Air heat exchangers that have been delivered in accordance with orders are in principle not
returnable. Heat exchangers can only be returned under certain conditions and following
consultation with Alfa LU-VE. This applies exclusively to unused units. The heat exchangers that
are to be returned should be delivered carriage paid to Alfa LU-VE in the original, undamaged and
unwritten factory packaging. Not returnable are:
• Heat exchangers older than three months from the invoice date.
• Heat exchangers that have already been built in and/or are damaged.
1.9 Guarantee
For our guarantee conditions, we refer to the Terms of Delivery. In general, the warranty period
between Alfa LU-VE and the customer is 24 months from factory invoice date or 12 months of
operation, which ever comes first. Heat exchangers must not be returned or disposed of, other
than in accordance with instructions from Alfa LU-VE. Contact your local Alfa LU-VE representative
before any remedial action is taken on the units, otherwise warranty may be void.
1.10 Disposal
After decommissioning the heat exchanger coil should be emptied from refrigerant fluids. Avoid
any emissions in the environment. Any refrigerants and oil residuals must be properly disposed of
according to applicable environmental regulations. The fully emptied heat exchanger unit, including
all electrical components, should be handed in to the proper authorized companies for recycling.

31573808EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
2 Product description
2.1 General information and application
Optigo PF27MC are cubic commercial air coolers suitable for the safe use of A3 refrigerants such
as R290 (propane). General application for Optigo PF27MC are in small to medium-sized cooling
rooms.
• Refrigerants: HFC A1, A2L, A3
• Design pressure: 24 bar
• Capacity (SC2 with R404): 1.07 up to 6.9 kW
• Capacity (Tair = 2.5 °C, Tevap = - 7.5 °C with R290): 1.40 up to 9.01 kW
• Air flow: 900 up to 10,400 m³/h
• Min. room temperature: - 25 °C
2.2 Standard configuration
• High-efficiency coil manufactured from internally grooved Cu tubes and louvered aluminium fins.
• Standard fin spacings: 4.5, 6 and 7 mm.
• Optigo PF27MC coolers are available with 1 to 4 fans fitted with high efficiency single speed Ø
275 mm EC fan motors drawing through the coil. Power supply 230/50/1. Fan motors are wired
to a central connection box.
• Durable galvanized steel casing, powder coated RAL 9003. Dismountable and openable casing
for cleaning and inspecting purposes.
• Each heat exchanger is leak tested with dry air and finally supplied with a dry air pre-charge.
• Delivered on a wooden pallet covered with a reinforced cardboard box.
2.3 Options
• Driptray heater (HD)
• Electric defrost in coil + driptray heater (E+HD) - only for 7 mm n spacing models
• Coil protection: Alupaint (AP)
• Driptray insulation (IS)
2.4 Code description
PF27MC - 2 1 - 4 N AL BP - *
1 2 3 4 5 6 7 8
1 Optigo PF27MC A3 safety compliant cubic commercial unit coolers (Ø 275 mm)
2 Number of fans (1 to 4)
3 Coil type (1, 2)
4 Fin spacing (4=4.5, 6=6.0, 7=7.0)
5 Defrost system (N=air defrost, HD=driptray heater, E+HD=electrical defrost in coil+driptray
heater)
6 Fin material (AL=aluminium, AP=pre-painted aluminium)
7 Packing (BP=box+pallet)
8 Options

31573808EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
①
③
④
②
1. Flammable gas
Use of flammable gas.
⑤
3 Product labels
Manufactured by
SEST-LUVE-POLSKA sp. z. o. o.
ul. Wyczólkowskiego 30,
44-109 Gliwice, Poland
HEAT EXCHANGER
PF27MC-21-4 N ALBP-
CODE: 10232606
S/N: 7487840/2021
PED CAT I
Fluid: A3
VOLUME: 6.00
dm3
Ts: -40 °C +55 °C
Max Pres: 2.4 MPa
VENTILATION
Nr. Motors: 2
PowerS: 230 V 50 Hz
180 W 0.8 A
N°
N°
MADE IN
POLAND
DEFROSTING
EXAMPLE
EXAMPLE
2. Product label
This label is positioned inside the casing.
Model Refer to paragraph "2.4
Code description"
Product code
Product Serial nr.
Communicate these when
ordering spare parts as
they identify the unit
PED Category According to PED
Fluid Refrigerant
Volume Coil Volume
Ts Range of operating
temperatures for the coil
Max Pres Max working pressure
No Motors Number of fans
Product code
Product serial nr.
Fluid
Volume
Ts
Max Pres
No. Motors
PED category
Model
⑥

31573808EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
3. Precharge warning
Units are delivered from the manufacturer
with an overpressure. Check pressure on the
Schrader valve. With unpressurised unit:
immediate report to manufacturer and note on
bill of delivery.
When installing the unit ensure the Schrader
valve is removed.
4. Electrical warning
Electrically powered component. Switch off
power supply before any maintenance or
installation activity.
5. Refer to instruction manual
Manual must be carefully examined and
instructions should be followed up at all times.
4 Transport and storage
During transportation the heat exchanger must be handled with all required care. Any instruction or
warning signs attached to the heat exchanger or the packaging must be followed. Avoid shocks or
continuous vibrations during transport. These may cause damage to the product. If required, consult
Alfa LU-VE and disassemble during transport any parts that are likely to be set into vibration. Air
heat exchangers must be adequately fixed on the transport vehicle. If temporary storage of the heat
exchanger is required, the following points should be observed:
• Store the heat exchanger in its packing, in a dry place with sufficient protection against sun and
other environmental influences.
• Always place air heat exchangers on an even surface.
• Do not stack air heat exchangers unless explicitly indicated this is allowed.
• Storage temperature between -40° C and +50 °C.
• Never open or remove the Schrader valves before unit installation. Overpressure in the coil must
be maintained.
Shelf life of air coolers is one year. If longer storage periods occur, check:
• Proper functioning of the fan motor.
• Mounting brackets, lifting lugs and fan fixings for corrosion.
6. Eurovent
The Optigo PF27MC series machines use
the same heat exchange components as the
corresponding Optigo FMC series models and
provide the same performance. The Optigo
PF27MC series machines can work with HFC
category A1 refrigerants.

31573808EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
Place the unit on the ground and manually turn
the air cooler into mounting position on a second
wooden pallet. Keep the packaging material in
place to prevent the drip trays from damaging.
Remove the cardboard box.
Unscrew the fixings from the original support
pallet (now on top) and remove it.
The cooler is now in mounting position.
PF27MC models are delivered on a wooden pallet covered with a reinforced cardboard box.
Handling and positioning can take place manually (smaller models) or with use of a forklift.
5 Unpacking and lifting
In order to avoid damage to the air cooler or
falling of the unit, ensure that the lifting forks
cover all beams from the lower support pallet.
Packed air coolers may be stacked during
transportation (max. 2) and storage (max. 3).
Respect the maximum number of stacked air
cooler units.
max. 3
max. 2
>50 mm

31573808EN-02
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Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
Lift the unit to mounting position and secure
following instructions given in chapter "6
Installation".
After having secured the cooler, the forks
may be lowered and the remaining packaging
materials can be removed.
Ensure that the cooler is not lifted directly onto the drip tray or the finned coil. Utilizing the proper
wooden transport beams and/or pallets prevents the cooler bending at the extremes such that the
cooling circuit or other components are damaged. All lifting procedures must be carefully carried out
by properly qualified personnel, ensuring absolute safety at all times.